I have a 2006 V70 R with low miles that is making a high-pitched whining noise that seems to come from the front, driver's side corner. You can actually hear it better with the hood shut, and it seems to be coming from low in the engine bay. It does not vary with engine speed, and it usually goes away after the car has been driven for a while. The car is also occasionally leaking in the same general area. It is not oil; the liquid is clear and sort of an olive color. It does not always leak in the same place, and sometimes it will not leak for almost a month. My mechanic has a good amount of Volvo experience and has been caring for my cars for many years, but so far we have not been able to recreate the noise or the leaks when at his shop. He also has not been able to find any fluid residue in the engine compartment. My daily-driver S60 R has never had a similar issue. I would appreciate any suggestions.